https://www.vedomosti.ru/library/news/2009/06/03/vputin-gazprom-budet-postavlyat-na-ukrainu-tolko-predoplachennyj-obem-gaza?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=vputin-gazprom-budet-postavlyat-na-ukrainu-tolko-predoplachennyj-obem-gaza